GRE Practice Question and Answer

Q: In a mixture of milk and water the proportion of water by weight was 75%. If in 60 gm of mixture 15 gm water was added, what would be the percentage of water ? (Weight in gm) 1836 0

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    80%
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    70%
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    75%
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    62%
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    Wrong
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Answer : 1. "80%"
Explanation :

Answer: A) 80% Explanation: Water in 60 gm mixture=60 x 75/100 = 45 gm. and Milk = 15 gm. ┬а After adding 15 gm. of water in mixture, total water = 45 + 15 = 60 gm and┬аweight of a mixture = 60 + 15 = 75 gm. ┬а So % of water = 100 x 60/75 = 80%.

Q: What is your ideal working environment ? 1836 0

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Answer :
Explanation :

The interviewer is attempting to assess how closely your ideal fits with the reality of their organisation. A positive work environment makes employees feel good about coming to work, and this provides the motivation to sustain them throughout the day. When you can find the ideal working environment that best suits your work ethics and personality, you will become more productive and lead a fulfilling life. - Before answering, take into account how their company is structured in terms of work days, formality, small start-up verses large corporation, etc.- Focus on wanting an environment that allows for the use and growth of your established skills and qualities.- Highlight your desire to work in a team-oriented workplace.- Talk about your work-style and that it blends in well with the companyтАЩs vision.

Q: The average age of a class is 15.8 years. The average age of the boys in the class is 16.4 years and that of the girls is 15.4 years. What is the ratio of boys to girls in the class ? 1835 0

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    1:3
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    2:3
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    3:2
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    3:1
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Answer : 2. "2:3"
Explanation :

Answer: B) 2:3 Explanation: Let number of boys = x ┬а,┬аLet number of girls = yTotal numbers of students = x + y(x + y) ├Ч 15.8 = 16.4x + 15.4y 0.6x = 0.4yx/y = 0.4/0.6 = 2/3 ┬а ┬аRatio of boys and girls in the class is 2:3

Q: There are two numbers such that the sum of twice the first number and thrice the second number is 100 and sum of thrice the first number and twice the second number is 120. Which is the larger number ? 1834 0

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    32
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    24
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    26
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    38
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Answer : 1. "32"
Explanation :

Answer: A) 32 Explanation: Let the first number be K and second number be LThen, 2K + 3L = 100.....(1)3K + 2L = 120.......(2)solving (1)&(2), we getK = 32 and L = 12 Hence the largest number is 32.

Q: A polygon has 44 diagonals, then the number of its sides are ? 1832 0

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    13
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    9
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    11
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    7
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Answer : 3. "11"
Explanation :

Answer: C) 11 Explanation: Let the number of sides be n.┬а The number of diagonals is given by┬аnC2┬а- n┬а┬а Therefore, nC2 - n = 44, n>0┬а nC2┬а- n┬а= 44 n2┬а- 3n - 88 = 0┬а n2 -11n + 8n - 88 = 0┬а┬а n(n - 11) + 8(n - 11) = 0┬а n = -8 or n = 11. ┬а As n>0, n will not be -8. Therefore, n=11.

Q: What can you hold but not touch? 1829 0

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Answer :
Explanation :

There are many possibilities for this. We can hold a breathe, meeting, conversation, party, grudge, etc... but cannot touch them.

Q: What one word has the most letters in it? 1828 0

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Answer :
Explanation :

ALPHABET is the only has the most letters in it. ┬а Alphabet has all the 26 letters from A - Z.┬а ┬а Hence,┬аALPHABET┬аis one word that has the most letters in it.

Q: The cost price of 40 Magazines is the same as the selling price of 'P' articles. If the profit is 25%, then the value of 'P' is: 1827 0

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    32
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    40
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    16
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    30
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Answer : 1. "32"
Explanation :

Answer: A) 32 Explanation: Let C.P. of each Magazine be Rs. 1 C.P. of P articles = Rs. P.┬а S.P. of P articles = Rs. 40. ┬а Profit = Rs. (40 - P) ┬а Now, Gain% =┬аProfitC.P├Ч100┬а=┬а40-PP├Ч100┬а ┬а Here 40-PP├Ч100= 25 -->P = 32.

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